1301228773543 has 4 divisors (see below), whose sum is σ = 1302663425800. Its totient is φ = 1299794121288.

The previous prime is 1301228773517. The next prime is 1301228773577. The reversal of 1301228773543 is 3453778221031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1301228773543 - 2⁵ = 1301228773511 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1301228773493 and 1301228773502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1301228773583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 717324768 + ... + 717326581.

It is an arithmetic number, because the mean of its divisors is an integer number (325665856450).

Almost surely, 2^{1301228773543} is an apocalyptic number.

1301228773543 is a deficient number, since it is larger than the sum of its proper divisors (1434652257).

1301228773543 is an equidigital number, since it uses as much as digits as its factorization.

1301228773543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1434652256.

The product of its (nonzero) digits is 846720, while the sum is 46.

The spelling of 1301228773543 in words is "one trillion, three hundred one billion, two hundred twenty-eight million, seven hundred seventy-three thousand, five hundred forty-three".